Share
IIR documentSummary
As a natural refrigerant, CO2 is a potential substitute for synthesized refrigerants with favourable environmental properties. In order to improve the performance of the transcritical CO2 compression cycle, the mathematical models of the single SCV cycle and the two stage TSCV+IC cycle were developed and the performance were analyzed based on the system constitution, basic principle and characteristics. Under the given calculation condition, the results showed the optimum high pressure of single stage SCV cycle is 8.8 MPa, and the maximal COP is 2.65. The optimum intermediate pressure of TSCV+IC cycle is 5.9 MPa, and the maximal COP is 3.08. Range of chilled water inlet temperature, COPc and COPh of two stage TSCV+IC cycle are about 24.5 and 21.5% higher than single stage SCV cycle, respectively. Range of cooling water inlet temperature, COPc and COPh of TSCV+IC cycle are about 26.5 and 21.4% higher than the SCV cycle.
Available documents
Format PDF
Pages: 2008-2
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Performance comparison of transcritical CO2 single compression and two-stage compression cycle with intercooler.
- Record ID : 2009-0568
- Languages: English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Publication date: 2008/09/07
Links
See other articles from the proceedings (132)
See the conference proceedings
Indexing
-
Themes:
Compression systems;
CO2 - Keywords: Refrigerating system; Comparison; Two-stage system; Compression system; Performance; Intermediate injection; Transcritical cycle; COP; CO2
-
Experimental results and evaluation of 2-stage ...
- Author(s) : IMAI S., ITSUKI H., OTAKE M., et al.
- Date : 2005/05/02
- Languages : English
- Source: 8th IEA Heat Pump Conference 2005: global advances in heat pump technology, applications, and markets. Conference proceedings [CD-ROM].
View record
-
Internal heat exchange, expanders and intercool...
- Author(s) : BULLARD C.
- Date : 2004/08/01
- Languages : English
- Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
- Formats : PDF
View record
-
Study on transcritical R744 (CO2) Voorhees heat...
- Author(s) : ZHA S., HAFNER A., NEKSÅ P.
- Date : 2005/08/30
- Languages : English
- Source: Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
- Formats : PDF
View record
-
Experimental study on the heating performance o...
- Author(s) : BAEK C., LEE E., KANG H., et al.
- Date : 2008/07/14
- Languages : English
- Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
View record
-
Influence factors in performance of the two-sta...
- Author(s) : ALMEIDA I. M. G., BARBOSA C. R. F.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
View record